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author | Len Brown <len.brown@intel.com> | 2012-09-23 02:43:08 (GMT) |
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committer | Len Brown <len.brown@intel.com> | 2012-09-23 02:43:08 (GMT) |
commit | 4f1004207ed67903c60ed6476da0cc571b19a220 (patch) | |
tree | 42880b00bb0fd2deda69ed109ece1484f059e0b9 /tools/power/acpi | |
parent | 0efea7b6b2ac2a6e7d7b223a6c70299099285103 (diff) | |
download | linux-4f1004207ed67903c60ed6476da0cc571b19a220.tar.xz |
tools/power/acpi/acpidump: version 20060606
This is unchanged version 20060606, plus a small bit in
DEFINE_ALTERNATE_TYPES to enable building with latest kernel headers.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools/power/acpi')
-rw-r--r-- | tools/power/acpi/acpidump.c | 97 |
1 files changed, 59 insertions, 38 deletions
diff --git a/tools/power/acpi/acpidump.c b/tools/power/acpi/acpidump.c index 3f0a9da..3bb8e82 100644 --- a/tools/power/acpi/acpidump.c +++ b/tools/power/acpi/acpidump.c @@ -1,5 +1,5 @@ /* - * (c) Alexey Starikovskiy, Intel, 2005. + * (c) Alexey Starikovskiy, Intel, 2005-2006. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -77,16 +77,16 @@ static inline u8 checksum(u8 * buffer, u32 length) } static unsigned long psz, addr, length; -static int print, connect; +static int print, connect, skip; static u8 select_sig[4]; static unsigned long read_efi_systab( void ) { + char buffer[80]; + unsigned long addr; FILE *f = fopen("/sys/firmware/efi/systab", "r"); if (f) { - char buffer[80]; while (fgets(buffer, 80, f)) { - unsigned long addr; if (sscanf(buffer, "ACPI20=0x%lx", &addr) == 1) return addr; } @@ -97,13 +97,15 @@ static unsigned long read_efi_systab( void ) static u8 *acpi_map_memory(unsigned long where, unsigned length) { + unsigned long offset; + u8 *there; int fd = open("/dev/mem", O_RDONLY); if (fd < 0) { fprintf(stderr, "acpi_os_map_memory: cannot open /dev/mem\n"); exit(1); } - unsigned long offset = where % psz; - u8 *there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE, + offset = where % psz; + there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE, fd, where - offset); close(fd); if (there == MAP_FAILED) return 0; @@ -118,10 +120,11 @@ static void acpi_unmap_memory(u8 * there, unsigned length) static struct acpi_table_header *acpi_map_table(unsigned long where, char *sig) { + unsigned size; struct acpi_table_header *tbl = (struct acpi_table_header *) acpi_map_memory(where, sizeof(struct acpi_table_header)); if (!tbl || (sig && memcmp(sig, tbl->signature, 4))) return 0; - unsigned size = tbl->length; + size = tbl->length; acpi_unmap_memory((u8 *) tbl, sizeof(struct acpi_table_header)); return (struct acpi_table_header *)acpi_map_memory(where, size); } @@ -133,12 +136,13 @@ static void acpi_unmap_table(struct acpi_table_header *tbl) static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length) { + struct acpi_rsdp_descriptor *rsdp; u8 *i, *end = begin + length; /* Search from given start address for the requested length */ for (i = begin; i < end; i += ACPI_RSDP_SCAN_STEP) { /* The signature and checksum must both be correct */ if (memcmp((char *)i, "RSD PTR ", 8)) continue; - struct acpi_rsdp_descriptor *rsdp = (struct acpi_rsdp_descriptor *)i; + rsdp = (struct acpi_rsdp_descriptor *)i; /* Signature matches, check the appropriate checksum */ if (!checksum((u8 *) rsdp, (rsdp->revision < 2) ? ACPI_RSDP_CHECKSUM_LENGTH : @@ -156,9 +160,10 @@ static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length) static void acpi_show_data(int fd, u8 * data, int size) { char buffer[256]; + int len; int i, remain = size; while (remain > 0) { - int len = snprintf(buffer, 256, " %04x:", size - remain); + len = snprintf(buffer, 256, " %04x:", size - remain); for (i = 0; i < 16 && i < remain; i++) { len += snprintf(&buffer[len], 256 - len, " %02x", data[i]); @@ -200,6 +205,10 @@ static void write_table(int fd, struct acpi_table_header *tbl, unsigned long add write(fd, tbl, tbl->length); } } else if (!select_done && !memcmp(select_sig, tbl->signature, 4)) { + if (skip > 0) { + --skip; + return; + } if (print) { acpi_show_table(fd, tbl, addr); } else { @@ -265,8 +274,10 @@ no_facs: static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp) { - struct acpi_table_header *tbl = 0; - int xsdt = 1; + struct acpi_table_header *sdt, *tbl = 0; + int xsdt = 1, i, num; + char *offset; + unsigned long addr; if (rsdp->revision > 1 && rsdp->xsdt_physical_address) { tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT"); } @@ -275,17 +286,17 @@ static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp) tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT"); } if (!tbl) return 0; - struct acpi_table_header *sdt = malloc(tbl->length); + sdt = malloc(tbl->length); memcpy(sdt, tbl, tbl->length); acpi_unmap_table(tbl); if (checksum((u8 *)sdt, sdt->length)) fprintf(stderr, "Wrong checksum for %s!\n", (xsdt)?"XSDT":"RSDT"); - int i, num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32)); - char *offset = (char *)sdt + sizeof(struct acpi_table_header); - unsigned long addr; + num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32)); + offset = (char *)sdt + sizeof(struct acpi_table_header); for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) { addr = (xsdt) ? (unsigned long)(*(u64 *)offset): (unsigned long)(*(u32 *)offset); + if (!addr) continue; tbl = acpi_map_table(addr, 0); if (!tbl) continue; if (!memcmp(tbl->signature, FADT_SIG, 4)) { @@ -330,29 +341,36 @@ static void usage(const char *progname) puts("\t--binary or -b -- dump data in binary form rather than in hex-dump format"); puts("\t--length 0x456 or -l 0x456 -- works only with --addr, dump physical memory" "\n\t\tregion without trying to understand it's contents"); + puts("\t--skip 2 or -s 2 -- skip 2 tables of the given name and output only 3rd one"); puts("\t--help or -h -- this help message"); exit(0); } +static struct option long_options[] = { + {"addr", 1, 0, 0}, + {"table", 1, 0, 0}, + {"output", 1, 0, 0}, + {"binary", 0, 0, 0}, + {"length", 1, 0, 0}, + {"skip", 1, 0, 0}, + {"help", 0, 0, 0}, + {0, 0, 0, 0} +}; int main(int argc, char **argv) { + int option_index, c, fd; + u8 *raw; + struct acpi_rsdp_descriptor rsdpx, *x = 0; + char *filename = 0; + char buff[80]; memset(select_sig, 0, 4); print = 1; connect = 0; - char *filename = 0; addr = length = 0; + skip = 0; while (1) { - int option_index = 0; - static struct option long_options[] = { - {"addr", 1, 0, 0}, - {"table", 1, 0, 0}, - {"output", 1, 0, 0}, - {"binary", 0, 0, 0}, - {"length", 1, 0, 0}, - {"help", 0, 0, 0}, - {0, 0, 0, 0} - }; - int c = getopt_long(argc, argv, "a:t:o:bl:h", + option_index = 0; + c = getopt_long(argc, argv, "a:t:o:bl:s:h", long_options, &option_index); if (c == -1) break; @@ -376,6 +394,9 @@ int main(int argc, char **argv) length = strtoul(optarg, (char **)NULL, 16); break; case 5: + skip = strtoul(optarg, (char **)NULL, 10); + break; + case 6: usage(argv[0]); exit(0); } @@ -395,6 +416,9 @@ int main(int argc, char **argv) case 'l': length = strtoul(optarg, (char **)NULL, 16); break; + case 's': + skip = strtoul(optarg, (char **)NULL, 10); + break; case 'h': usage(argv[0]); exit(0); @@ -404,20 +428,19 @@ int main(int argc, char **argv) exit(0); } } - - int fd = STDOUT_FILENO; + + fd = STDOUT_FILENO; if (filename) { fd = creat(filename, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH); if (fd < 0) return fd; } - + if (!select_sig[0] && !print) { connect = 1; } - + psz = sysconf(_SC_PAGESIZE); - u8 *raw; if (length && addr) { /* We know length and address, it means we just want a memory dump */ if (!(raw = acpi_map_memory(addr, length))) @@ -426,7 +449,7 @@ int main(int argc, char **argv) acpi_unmap_memory(raw, length); return 0; } - + length = sizeof(struct acpi_rsdp_descriptor); if (!addr) { addr = read_efi_systab(); @@ -435,12 +458,11 @@ int main(int argc, char **argv) length = ACPI_HI_RSDP_WINDOW_SIZE; } } - - struct acpi_rsdp_descriptor rsdpx, *x = 0; + if (!(raw = acpi_map_memory(addr, length)) || - !(x = acpi_scan_for_rsdp(raw, length))) + !(x = acpi_scan_for_rsdp(raw, length))) goto not_found; - + /* Find RSDP and print all found tables */ memcpy(&rsdpx, x, sizeof(struct acpi_rsdp_descriptor)); acpi_unmap_memory(raw, length); @@ -454,7 +476,6 @@ int main(int argc, char **argv) write(fd, x, (rsdpx.revision < 2) ? ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH); } else if (!select_sig[0] || !memcmp("RSD PTR ", select_sig, 4)) { - char buff[80]; addr += (long)x - (long)raw; length = snprintf(buff, 80, "RSD PTR @ %p\n", (void *)addr); write(fd, buff, length); |